package com.itlaobing.test1;

public class ShapeTest {

	public static void main(String[] args) {
		StringBuffer sb=new StringBuffer("     *");
		System.out.println(sb);
		for (int i = 0; i < 5; i++) {
			System.out.println(sb.delete(0, 1).append("**"));
		}
	}

}
